在第11章Nav2导航仿真实战 的入门篇使用fishbot进行自主导航的这一节，编译fishbot_navigation2功能包的时候出现下边这个错误

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在第11章Nav2导航仿真实战 的入门篇使用fishbot进行自主导航的这一节，编译fishbot_navigation2功能包的时候出现下边这个错误
WARNING:colcon.colcon_core.package_identification:Failed to parse ROS package manifest in 'fishbot_navigation2': Error(s) in package 'fishbot_navigation2/package.xml':
Error(s):

• The generic dependency on 'nav2_bringup' is redundant with: exec_depend
  ……
  --- stderr: nav2_util
  CMake Error at test/CMakeLists.txt:7 (find_package):
  By not providing "Findtest_msgs.cmake" in CMAKE_MODULE_PATH this project
  has asked CMake to find a package configuration file provided by
  "test_msgs", but CMake did not find one.
  求助求助怎么解决